2 speed tranny

Haggy102 · Outlaw Joined: 16 Apr 2004 Posts: 103

Ive read that a wakeboard boat has been made with a 2 speed transmission, I believe its called the Duo or sumthin, has anyone else heard about this or have any iformation on it? Confused

Brit Rider · Posted: May 08, 2004 5:26 am Post subject:

MB sports made the B52's with a 2 speed i believe. 1 for gettin the rider up with, gear two for high end speed.

Haggy102 · Outlaw Joined: 16 Apr 2004 Posts: 103

Ya, that low end torque for rippen them right out, the only concern i had was how much can you feel the transmission shifting wen ure being pulled, because too much might throw u off Confused

Brit Rider · Posted: May 08, 2004 11:33 am Post subject:

I heard its pretty smooth. I know a guy who knows a guy with one, I'll ask the question for you.

krbaugh · Addict Joined: 24 Jan 2003 Posts: 758 City: Edwardsville

how much difference in top end does it make?

DJew Jake · Posted: May 08, 2004 2:28 pm Post subject:

Its not about top end its about more torqe to pull the rider out then shifting to a normal gear to not eat gas

krbaugh · Addict Joined: 24 Jan 2003 Posts: 758 City: Edwardsville

Ok i must have missunderstood this post
"MB sports made the B52's with a 2 speed i believe. 1 for gettin the rider up with, gear two for high end speed."

Bruky · Guest

high end speed doesnt neccasarily mean its faster, but high end as in the top couple of k rpms.

Dave W · Posted: May 08, 2004 6:12 pm Post subject:

Yeah, don't necessarily think of it as "high end". Think of it as one gear for extra torque pulling the boarder out of the water, and a normal gear for once he/she is up. At least that's my understanding of it. The acceleration gear probably has a bit of ratio like 1.5:1 or 1.25:1. Then the other gear is probably more like a standard 1:1 ratio.

Hmmm..... I suppose if I was feeling ambitious I would actually go to the MB website and look it up. Oh well.

krbaugh · Addict Joined: 24 Jan 2003 Posts: 758 City: Edwardsville

thanks I was hoping for hands on experience more than marketing Very Happy

Hyperryd · Addict Joined: 03 May 2003 Posts: 604 City: Central Cali

I have an '04 B-52 with the two speed tranny. It is the best investment on the boat. The low gear is exactly that, a granny gear to get the 2k pounds of ballast and 10 friends on plane quickly and then you shift into high, which is the same gear as a single speed. The boat doesn't go faster, it gets on plane quicker without bogging down. I use it all the time. If you slow down and want to get on back up to speed quickly you just shift down and go for it. I think any boat that carries a lot of ballast should have a two speed. You don't really notice a difference when the boat is empty and light, but load it down and you won't leave home without it.

Bruky · Guest

yeah, that is another good point about how the b-52 has sooooo much stock ballast.

criminally_minded · Posted: May 10, 2004 9:38 pm Post subject:

Hyperryd, what sort of selection is it? Electronic shift? Manual using the throttle? How about the gear system itself, is it meshing gears or planetary?

Cheers.

Hyperryd · Addict Joined: 03 May 2003 Posts: 604 City: Central Cali

criminally_mindedIt is controlled by the driver with a HI/LO switch on the throttle lever. It is electronic shifting that can be shifted at any RPM. Although I don't recomend shifting at really high revs as it is a jolting shift. The manufacturer says it won't hurt the tranny, I say why push it. I floor it in Lo to get on plane and then as I am letting off of the throttle for planing, I shift to High. It is very smooth, most people on the boat never even notice. I am not sure what kind of gear system it is. Annother note, the tranny also has two speeds in reverse.

criminally_minded · Posted: May 11, 2004 5:35 pm Post subject:

Sounds excellent, definitely worth the money and would allow a lot more weight to be placed in the boat with minimal strain on the drivetrain.

Cheers.

Bruky · Guest

how would you work perfect pass with it? the same way or do they have their own system? i could drive 10 minutes to go look at them, but its easier just asking Laughing

Hyperryd · Addict Joined: 03 May 2003 Posts: 604 City: Central Cali

Perfect Pass works the same as usual. PP doesn't care what gear it is in. I just speeds up or slows down.

Bruky · Guest

oh ok, that make sense since it is in control of the engine and not the transmission...